Billable / Specific Code
ICD-10-CM D81.818 is the diagnosis code for Other biotin-dependent carboxylase deficiency. This code falls under the section "Certain disorders involving the immune mechanism" within Chapter 3 — Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where D81.818 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, D81.818 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
D81.818 is the ICD-10-CM diagnosis code for "Other biotin-dependent carboxylase deficiency". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of D81.818 is D81.81 ("Biotin-dependent carboxylase deficiency"). D81.818 provides a more specific classification within this category.
D81.818 is located in Section D80-D89 — "Certain disorders involving the immune mechanism" within Chapter 3 of the ICD-10-CM Tabular List.
Use D81.818 when the patients documented diagnosis matches "Other biotin-dependent carboxylase deficiency" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Other biotin-dependent carboxylase deficiency is D81.818.
Yes, D81.818 can be used as a primary diagnosis code since it is billable and specific.
D81.818 is in Chapter 3 of the ICD-10-CM Tabular List.
Yes, D81.818 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.